Hydraulic riveting or punching tool.



Patented lune 3, |902.

C. WIGTEL. y

HYDRAULIC RIVETING OB PUNCHING TOOL.

(Application filed Mar. 11, 1901.)

WITN ESSES A'TTORNEY UNITED STATES PATENT OFFICE..

CARL IVIGTEL, OF BROOKLYN, NEW YORK, ASSIGNOR TO FRANCIS H. STILL- MAN,OF BROOKLYN, NEW YORK.

HYDRAULIC RIVETING OR PUNCHING TOOL.

.SPECIFICATION forming' part 0f Letters Patent N0. 701,439, dated J une3, 1902. Application filed March 11| 19OL Serial No. 50,639. (No model.)

.To all whom z5 may concern/5 Be it known that I, CARL WIGTEL, a citizenof the United States, and a resident of Brooklyn, in the county ofKings, in the city and State of New York, have invented a certain newand useful Improvement in Hydraulic Riveting or Punching Tools, of whichthe following is a full, clear, and exact description, reference beingmade to the accompanying drawings, forming part of this specification.

This invention relates to improvements in hydraulic tools which comprisea ram and a pivoted jaw that counteracts the pressure of the ram on thework, and it may be embodied in both riveting-tools and punching-tools,the object of the invention being to produce a small tool suitable foruse under conditions that are hereinafter specified and that render theuse of a tool of any common type inconvenient, if not impracticable.

On the accompanying sheet of drawings, Figure l is a side elevation of atool embodying the invention; Fig. 2, a vertical section thereof, andFig. 3 a horizontal section on the plane containing the axis of thepivoted Jaw.

Similar reference-letters designate like parts in diierent views.

The particular tool illustrated herein is a bond-compressor which isused in bonding electric railways and which compresses and upsetsbond-rivets inserted in the webs of T- rails. It is made of steel andweighs about ninety pounds. The power of the tool is twenty-five tons,and the Vmovement of the ram under hydraulic action is one inch. Theconditions under which the work is done are such as commonly pertain toelevated railways, the rails being permanently laid in the track andthere being guard-beams extending along each line of rails close to theinner and outer sides of the rails.

The body a of this tool contains near its lower end a round chamber, inwhich is the ram b, with a riveting-post c, formed thereon. The bodyalso contains a fluid-reservoir d and a passage e, connecting thereservoir with the ram-chamber. At the top of the body is a hollow postf, which is screwed into the body and in which is a female screw, therebeing a ring g of packing under the post. A

male screw h, having anunthreaded extension e", passes through the post,engaging with the female screw, the extension 'i passing through thepacking-ring and into the reser- 5 5 voir d. Between ears j, formed onand extending in front of the body, a jaw 7o is pivoted about midwaybetween its ends on a pin Z, the jaw having onit an anvil m. A block ntits on the upper end of this jaw and the 6o top of the body and betweenthe jaw and body, as appears by Figs. l and 2, the block being attachedto the body by a chain and being removable from between the jaw andbody, so as to allow the lower end of the jaw 6 5 to be swung outward.

The tool is passed over the head of a rail and between the guard-beamsand rail when the lower end of the jaw is in its outermost position, andthen the jaw is turned on the 7o pin Z and the block n is insertedbetween the jaw and body, after-which the ram is actuated by turning thescrew k and forcing iiuid'from the reservoir d into the ram-chamber.

Obviously a punch and die might be sub- 7 5 stituted for theriveting-post c and anvil m, or

the tool might be rendered convertible into a punch or riveteralternately by providing it with interchangeable punching and rivetingdevices.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, isl l. A hydraulic riveting or punching toolcomprising the combination of: a ram; a jaw pivoted between its ends tothe body of the tool and extending in front of the ram; devices on theram and jaw that coact on the work on one side of the pivot-pin; and aremovable block that lits between the jawand 9o body on the other sideof the pivot-pin; "substantially as described.

2. A hydraulic riveting or punching tool comprising the combination of:a body o! containing a fluid-reservoir d; a hollow post on the body; ascrew engaging with the hollow post and having an extension that passesinto the reservoir CZ; a ram whose axis is transverse to that of thereservoir d and whose chamber is connected with the reservoir; a rod jawpivoted to the body and extending in front of the ram; devices on thejaw and ram that coact ou the Work; and means to prevent the jaw fromturning under' the action of the ram; substantiallyas described.

3. A hydraulic riveting or punching tool comprising the combination of abody a containing a iuid-I'eservoir d; a hollow post on the body; ascrew engaging with the hollow post and having an extension that passesinto the reservoir d; a ram Whose axis is trans- Verse to that of thereservoir d and Whose chamber is connected with the reservoir; a

jaw pivoted between its ends to the body and extending in front of therain; devices on the ram and jaw that coact on the Work on one side ofthe pivot-pin; and a removable block that ts between the jaw and body onthe other side of the pivot-pin; substantially as described.

CARL WIGTEL. In presence of- AUGUST KINKELIN, JOHN E. KERSTEN.

